Fixes error handling, leaks in secure sockets.

runtime/bin/secure_socket.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef BIN_SECURE_SOCKET_H_
 #define BIN_SECURE_SOCKET_H_
 
 #ifdef DART_IO_SECURE_SOCKET_DISABLED
 #error "secure_socket.h can only be included on builds with SSL enabled"
 #endif
@@ skipping 44 matching lines @@
       : callback_error(NULL),
         ssl_(NULL),
         socket_side_(NULL),
         string_start_(NULL),
         string_length_(NULL),
         handshake_complete_(NULL),
         bad_certificate_callback_(NULL),
         in_handshake_(false),
         hostname_(NULL) { }
 
-  void Init(Dart_Handle dart_this);
+  ~SSLFilter();
+
+  Dart_Handle Init(Dart_Handle dart_this);
   void Connect(const char* hostname,
                SSL_CTX* context,
                bool is_server,
                bool request_client_certificate,
                bool require_client_certificate,
                Dart_Handle protocols_handle);
   void Destroy();
   void Handshake();
   void GetSelectedProtocol(Dart_NativeArguments args);
   void Renegotiate(bool use_session_cache,
@@ skipping 37 matching lines @@
   Dart_PersistentHandle dart_buffer_objects_[kNumBuffers];
   Dart_PersistentHandle handshake_complete_;
   Dart_PersistentHandle bad_certificate_callback_;
   bool in_handshake_;
   bool is_server_;
   char* hostname_;
 
   static bool isBufferEncrypted(int i) {
     return static_cast<BufferIndex>(i) >= kFirstEncrypted;
   }
-  void InitializeBuffers(Dart_Handle dart_this);
+  Dart_Handle InitializeBuffers(Dart_Handle dart_this);
   void InitializePlatformData();
 
   DISALLOW_COPY_AND_ASSIGN(SSLFilter);
 };
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // BIN_SECURE_SOCKET_H_